when the engineer wakes up and is looking at everyone, Shaw starts asking "why do they want us dead" "what did we do?" and so on.....
in one of the scenes, i cant remember, but they were talking about what would happen if you met your creator and its not what you expected, or what if you didnt even like your creator, and this got me thinking from the other side, what would you do if you were an engineer and you created humans and they started to follow another higher power? you wouldnt be very happy either.
Thats when i thought of AVP and remember them thinking that predators taught humans. I came to the idea that the engineers created humans and humans worshiped the engineers for a while, then once they left and let the human race grow on its own the Predators stepped in and started influencing the human race (as seen in AVP).
The engineers got pissed because their creation started to worship another higher power - the predators
what do you think?